83656705 has 8 divisors (see below), whose sum is σ = 109514304. Its totient is φ = 60841200.

The previous prime is 83656697. The next prime is 83656709. The reversal of 83656705 is 50765638.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 83656705 - 2³ = 83656697 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83656709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 760461 + ... + 760570.

It is an arithmetic number, because the mean of its divisors is an integer number (13689288).

It is a Proth number, since it is equal to 2553 ⋅ 2¹⁵ + 1 and 2553 < 2¹⁵.

Almost surely, 2^83656705 is an apocalyptic number.

It is an amenable number.

83656705 is a deficient number, since it is larger than the sum of its proper divisors (25857599).

83656705 is a wasteful number, since it uses less digits than its factorization.

83656705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1521047.

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 83656705 is about 9146.4039381606. The cubic root of 83656705 is about 437.3544854841.

The spelling of 83656705 in words is "eighty-three million, six hundred fifty-six thousand, seven hundred five".